Grain is pored into a silo to be stored for later use. due to the friction between pieces of grain as they rub against eachother during the pouring process, one piece of grain picks up a charge of 6.0e-10c and another piece of grain picks up a charge of 2.3e-15c. what is the electric force between them if the pieces are 2 cm apart?

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?